In Which Statement Is the Term "Demand" Used Correctly? (1)An

In which statement is the term "demand" used correctly? (1) An increase in the price of copper will lead to an increase in the demand for aluminum (a substitute for copper) .(2) An increase in the price of aluminum will lead to a decrease in quantity demanded of aluminum.

A) neither statement
B) the first statement only
C) the second statement only
D) both statements
E) more information is needed